Antidrip pump



Apr. 24, 1923. 1,452,686

v HARMAN ET AL v ANTAIDRIP PUMP Filed Jan. 2, 1925. 2 Sheets-.Sheet l yApr. 24, 1923..

' 1,452,686' H. HARMAN ET Al.

ANTIDRIP PUMP Filed Jah. 2, 1925 2 sheets-shet 2 Wlrwses: I j@ MPatented Api. 24, 1923,

A? hi i? Fi',

HENRY HARMAN AND'FERRIN o. HARMAN, or ousrnnforrr, OKLAHOMA.

' ANTIDRIP rurale.

vented certain new and ruseful Improvements in Antidrip Pumps, ofl whichthe `following is a specification.

The primary object of our said invention resides in the provisionof apump, wherein y means is provided for providing the usual dripping ofthese pumps, after the pumping action has been completed, thearrangement being such as to convey the excessive fluidback into thepump casing.

A further object ofthe invention is the provision of such a means forpumps that is V comparatively simple of construction, inexpensive ofmanufacture or. application and vhighly useful for the purpose intended.

The nature and advantages of the inven tion will be better understoodwhen the following detailed description is read in connection with" theaccompanying drawings,

the invention residing in the construction,

combination, and arrangement of parts as claimed.

plication, like numerals of vreference indicate similar parts in theseveral views, and j view of the conventional form of water` Figure. 1is a fragmentary side elevational pump, a portion-of the pump casingandthe water outlet nozzle being shown. in cross section for moreclearly disclosing the pre- Lferred embodiment of our anti-dripmeans.Figure 2 is atiansverse cross sectional view ofthe outlet nozzle of thepump, and taken .substantially 'upon theline 2-2 of Figure 1.

Figure 3 is a view similar to Figure '1 for disclosing amodied form ofthe invention,

which is in the nature of an anti-drip at.

`nozzle, B is flared outwardly as at 5,a-nd is Application filed January2,1923,y Serial Noi.610,134.

which channel is occasioned by forming what may be termed a neck 7kwithin the outlet end of this nozzle.4 The channel y6 has an'outletgopeningS for receiving oneend of a fluid conveying pipe 9, theopposite 'end of thispipe engaging through an opening 10 within the pumpcasing A. It will at oncel be apparentthat avpuinp having'anoutlet'nozzle yformed as shown in F'gures 1 and2, that any'drippings ofthe fluid will be caught in thesaid channely 6,.

which fluid will be conveyed into the pump casing A throughtheinstrumentality of th pipe 9. i

"'inteiioily 'formed with a water channel Now, having reference toFigures 3 to 5 'I inclusive, we have shownk an anti-drip means for theoutlet nozzles of pumps, which means is in the form of an attachmenttherefor.k

ln this instance, the end of theoutlet nozzle is formed with an externalrounded shoulder 11.

member 13. i A

'The lower end ofthe cup 12`is formed lower end of the said rubber ringis compressed in' a Lmanner hereinafter described,y when the attachmentis placedupon the out-l I let nozzle of the pumpV for rigidly maintain-lThe anti-drip attachment constitutes` the provision of a metallic cup12, within which is received a composition rubber ring with an annularchannel 14, into which the In the drawings forming part of this apingthe same thereon. The rbottom wall 15 `A of the metallic cup 12 isprovided with a central v,opening 4and formed within this opening is acollar -or sleeve 16 which effectively -orovides a channel 17 .betweenthe` interior of the nozzle B and the said collar.

or sleeve. Thischannel 17 has communica- 4 tion with an outlet nipple 18formed upon the cup and to which is secured one end tube engagingthrough an opening 20 in the pump casing In the latter mentioned forniof the inven-l of a rubber tube 19, the other end of this tion, it .willbe seen that the attachment may be readily positioned upon the outletend of engagement with the outlet nozzle, and in ViewL of the roundedshoulders 11 upon the f nozzle, vone end of therubber ring will beyforced into the said channel 14of the cup 12 for effectively maintainingthe attach-f ment upon the nozzle.

In view of the abovedescripti'on, it Vwill at once be seen that we haveprovided means for effectively catching, and conveying back into theWell casing,` the pump drippings, and this being accomplished in acomparatively simple and inexpensive manner.

`While we have herein shown and described the preferred embodiments ofthe present in- `vention, it is nevertheless to he understood that minorchanges may be made therein Without departing from the spirit and theScope ot' the invention as claimed.

A' What We claim as new is l. The combination vvith a pump outletnozzle, of a channel Within the outlet end thereof for receiving thepump drippings

